JP2017033394A - Monitoring system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a monitoring system that enables a possibility of occurrence of a liquefaction phenomenon to be distributed to a facility of a monitoring object.SOLUTION: A monitoring system comprises: a seismic intensity specification unit 21; an occurrence rate calculation unit 22; and a liquefaction determination unit 23; and an alert unit 24. The seismic intensity specification unit 21 is configured to specify seismic intensity at a point where a facility is installed, and the occurrence rate calculation unit 22 is configured to calculate an occurrence rate of a liquefaction phenomenon at the point on the basis of the seismic intensity specified by the seismic intensity specification unit 21. The liquefaction determination unit 23 is configured to determine whether the occurrence rate of the liquefaction phenomenon calculated by the occurrence rate calculation unit 22 exceeds a threshold, and the alert unit 24 is configured to, when it is determined by the liquefaction determination unit 23 that the occurrence rate thereof exceeds the threshold, alert a warning to the facility.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a system for monitoring an elevator or the like.

  Patent Document 1 describes a system for monitoring an elevator apparatus. In the system described in Patent Document 1, when the monitoring center receives the earthquake early warning, an appropriate announcement is made from a speaker provided in the elevator car.

JP 2011-1448577 A

  In Japan, a system for remotely monitoring a large number of elevator devices and escalator devices is widespread. The system described in Patent Literature 1 uses such a monitoring system to cause a monitoring target facility to perform an appropriate operation when an earthquake occurs. However, no appropriate response has been made to the liquefaction phenomenon. Unlike the earthquake, liquefaction occurs locally. This made the response difficult.

  The present invention has been made to solve the above-described problems. An object of the present invention is to provide a monitoring system capable of distributing to a facility to be monitored that a liquefaction phenomenon may occur.

  The monitoring system according to the present invention includes a seismic intensity specifying means for specifying a seismic intensity at a point where equipment is installed, and an occurrence rate for calculating an occurrence rate of a liquefaction phenomenon at the point based on the seismic intensity specified by the seismic intensity specifying means. Calculating means, liquefaction determining means for determining whether or not the occurrence rate calculated by the occurrence rate calculating means exceeds a threshold, and when the liquefaction determining means determines that the occurrence rate exceeds the threshold, Reporting means for issuing a warning to the facility.

  The monitoring system according to the present invention includes an information receiving unit that receives information on three-component acceleration detected by an accelerometer, and a seismic intensity at a point where the facility is installed based on the acceleration information received by the information receiving unit. Seismic intensity identification means specified at a certain period, incidence calculation means for calculating the occurrence rate of liquefaction phenomenon at a point based on the seismic intensity specified by the seismic intensity identification means, and the incidence calculated by the incidence calculation means Liquefaction determining means for determining whether or not the threshold value exceeds a threshold value, and a reporting means for issuing an alarm to the equipment when the liquefaction determining means determines that the occurrence rate exceeds the threshold value. .

  With the monitoring system according to the present invention, the fact that there is a possibility that a liquefaction phenomenon may occur can be distributed to the facility to be monitored.

It is a figure which shows the structural example of the monitoring system in Embodiment 1 of this invention. It is a flowchart which shows the operation example of the monitoring system in Embodiment 1 of this invention. It is a figure which shows the structural example of the monitoring system in Embodiment 2 of this invention. It is a flowchart which shows the operation example of the monitoring system in Embodiment 2 of this invention. It is a diagram illustrating the concept of calculated values [Delta] I _s. Is a diagram showing the relationship between [Delta] I _s and the incidence of liquefaction. It is a figure which shows the hardware constitutions of a monitoring center.

  The present invention will be described with reference to the accompanying drawings. The overlapping description will be simplified or omitted as appropriate. In each figure, the same reference numerals indicate the same or corresponding parts.

Embodiment 1 FIG.
FIG. 1 is a diagram showing a configuration example of a monitoring system according to Embodiment 1 of the present invention. The monitoring center 1 monitors a number of remote facilities. For example, the monitoring center 1 monitors an elevator device and an escalator device. The monitoring center 1 is installed in a maintenance company that performs maintenance of elevator devices and escalator devices, for example. The monitoring center 1 can communicate with equipment to be monitored.

  The equipment to be monitored by the monitoring center 1 is not limited to an elevator device and an escalator device. The monitoring center 1 may remotely monitor only the elevator apparatus. The monitoring center 1 may remotely monitor only the escalator device. The monitoring center 1 may remotely monitor facilities other than the elevator device and the escalator device.

  The elevator apparatus includes, for example, a car 2 and a counterweight 3. The notification device 4 is a device for reporting information to an elevator user. Examples of the notification device 4 include a display and a speaker. The notification device 4 is provided in the car 2, for example. The notification device 4 may be provided at a landing where the car 2 stops. For example, the notification device 4 is provided at a landing on the first floor.

  The car 2 and the counterweight 3 are suspended from the hoistway by the main rope 5. The elevator hoisting machine includes, for example, a driving sheave 6 and an electric motor 7. The main rope 5 is wound around the drive sheave 6. The drive sheave 6 is driven by an electric motor 7. The electric motor 7 is controlled by the control panel 8. A communication device 9 is connected to the control panel 8. The communication device 9 performs communication with the outside. Each elevator apparatus communicates with the monitoring center 1 through the communication device 9.

  The escalator device includes, for example, a footboard 10 and a moving handrail 11. The notification device 12 is a device for notifying the escalator user of information. Examples of the notification device 12 include a display and a speaker. The notification device 12 is provided at, for example, an entrance / exit. For example, the notification device 12 is provided at the entrance / exit on the first floor.

  The footboard 10 and the moving handrail 11 are driven by a driving device 13. The driving device 13 is controlled by the control panel 14. A communication device 15 is connected to the control panel 14. The communication device 15 performs communication with the outside. Each escalator device communicates with the monitoring center 1 through the communication device 15.

  The portable terminal 16 is a device owned by maintenance personnel. The maintenance staff is responsible for the maintenance of the equipment to be monitored by the monitoring center 1. In the example shown in the present embodiment, the maintenance staff is a professional engineer who maintains the elevator apparatus and a professional engineer who maintains the escalator apparatus. The portable terminal 16 has a function of notifying information to maintenance personnel. For example, the mobile terminal 16 includes a display or a speaker. The mobile terminal 16 may include both a display and a speaker. In addition, the mobile terminal 16 has a function of detecting the current position. The mobile terminal 16 transmits the detected position information to the monitoring center 1. In the monitoring center 1, the current position of each mobile terminal 16, that is, the current position of each maintenance staff is specified based on the position information received from the mobile terminal 16.

  The vehicle 17 is an example of a device used when maintenance personnel perform maintenance. The maintenance staff uses the vehicle 17 when performing maintenance on the equipment to be monitored by the monitoring center 1. The vehicle 17 has a function of notifying information to maintenance personnel. For example, the vehicle 17 includes a display or a speaker. The vehicle 17 may include both a display and a speaker.

  The monitoring center 1 predicts the occurrence of the liquefaction phenomenon and transmits appropriate information to the facilities existing in the area where the liquefaction phenomenon may occur. The monitoring center 1 acquires information necessary for predicting the occurrence of the liquefaction phenomenon from the external weather information center 18 or the like. The meteorological information center 18 is a business support center of the Japan Meteorological Agency and the Meteorological Agency, for example.

  In order to realize the above function, the monitoring center 1 includes, for example, a storage unit 19, an information receiving unit 20, a seismic intensity specifying unit 21, an occurrence rate calculating unit 22, a liquefaction determining unit 23, and a reporting unit 24. Hereinafter, the function of the monitoring center 1 will be described in detail with reference to FIG. FIG. 2 is a flowchart showing an operation example of the monitoring system according to Embodiment 1 of the present invention.

  The monitoring center 1 periodically determines whether earthquake information has been received from the outside (S101). Consider a case where an earthquake occurs and a point B where a certain facility A (for example, an elevator device) is installed shakes. When an earthquake occurs, earthquake information including information on seismic intensity at point B is distributed from the weather information center 18. The earthquake information distributed from the weather information center 18 is received by the information receiving unit 20. An earthquake early warning may be adopted as earthquake information.

  When the information receiving unit 20 receives the earthquake information, the seismic intensity specifying unit 21 specifies the seismic intensity at the point B (S102). The earthquake information received by the information receiving unit 20 from the weather information center 18 includes the seismic intensity at the point B. The seismic intensity specifying unit 21 may specify the seismic intensity included in the earthquake information as the seismic intensity at the point B.

  In the seismic intensity information distributed from the weather information center 18, the same seismic intensity is often set for a relatively wide area. For example, the seismic intensity information distributed from the weather information center 18 includes the seismic intensity of each municipality. In this case, the seismic intensity is the same within the same city. The seismic intensity specifying unit 21 may specify the seismic intensity at the point B in more detail. For example, the surface layer ground amplification factor at the point B is stored in the storage unit 19. The surface ground amplification factor is a numerical value of the magnitude of shaking of the surface ground during an earthquake, and indicates the weakness of the ground to an earthquake. You may memorize | store the surface layer ground gain map of the whole country in the memory | storage part 19. FIG. The seismic intensity specifying unit 21 specifies the seismic intensity of the point B based on the seismic intensity information of the point B included in the earthquake information received by the information receiving unit 20 and the surface ground amplification factor of the point B stored in the storage unit 19. You may do it. For example, the seismic intensity specifying unit 21 specifies a value obtained by amplifying the seismic intensity at the point B included in the earthquake information by the surface ground amplification factor at the point B as the seismic intensity at the point B.

  Next, the occurrence rate calculation unit 22 calculates the occurrence rate of the liquefaction phenomenon at the point B (S103). The occurrence rate calculation unit 22 performs the above calculation based on the seismic intensity at the point B specified by the seismic intensity specifying unit 21. Below, the example which calculates the incidence rate of a liquefaction phenomenon based on the seismic intensity of the point B specified by the seismic intensity specification part 21 and the incidence rate curve of the liquefaction phenomenon of the point B is demonstrated.

  The occurrence rate curve of the liquefaction phenomenon at each point is a curve determined according to the micro terrain classification at each point. That is, the occurrence rate curve at the point B is determined according to the fine landform classification at the point B. Regarding the incidence curve of liquefaction phenomenon, for example, Matsuoka, et al. “Estimation method of liquefaction risk based on topographic / ground classification 250m mesh map”, Japan Earthquake Engineering Society, Vol. 11, No. 2, 2011 describes that it can be expressed by the following equation.

Here, P _liq (I) is the occurrence rate of the liquefaction phenomenon. The occurrence rate curve of the liquefaction phenomenon in the present embodiment is a curve indicated by P _liq (I). Φ (x) is an error function. I is the measured seismic intensity. In the example shown in the present embodiment, I is the seismic intensity specified by the seismic intensity specifying unit 21. μ and ρ are coefficients, respectively. The coefficient μ and the coefficient ρ are set as shown in Table 1, for example, according to the fine landform classification. Note that the micro-topography classification is a unit in which the origin, form, constituent material and formation age of the ground are the same in each standard, and is closely related to the ground composition.

  For example, the fine terrain classification of the point B is stored in the storage unit 19. The occurrence rate calculation unit 22 uses the coefficient μ and coefficient ρ specified from the micro-terrain classification of the point B and the seismic intensity of the point B specified by the seismic intensity specifying unit 21 to calculate the liquefaction phenomenon at the point B from Equation 1. Calculate the incidence. You may memorize | store the fine landform division map of the whole country in the memory | storage part 19. FIG. For example, the storage unit 19 stores a 250 m mesh micro-terrain classification map. In such a case, the occurrence rate calculation unit 22 specifies the coefficient μ and the coefficient ρ from the fine landform classification of the area including the point B. The occurrence rate calculation unit 22 may specify the coefficient μ and the coefficient ρ in consideration of the fine landform classification of the area around the area including the point B. For example, the occurrence rate calculation unit 22 specifies the coefficient μ and the coefficient ρ in consideration of the fine landform classification of nine areas centering on the area including the point B.

  Next, the liquefaction determination unit 23 determines whether or not the liquefaction phenomenon is likely to occur at the point B. Specifically, the liquefaction determination unit 23 determines whether the occurrence rate of the liquefaction phenomenon at the point B calculated by the occurrence rate calculation unit 22 exceeds a threshold value (S104). The threshold value to be compared with the occurrence rate calculated by the occurrence rate calculation unit 22 is stored in advance. If the occurrence rate at the point B calculated by the occurrence rate calculation unit 22 does not exceed the threshold value, the liquefaction determination unit 23 determines that the possibility that a liquefaction phenomenon occurs at the point B is not high. If the occurrence rate at the point B calculated by the occurrence rate calculation unit 22 exceeds the threshold value, the liquefaction determination unit 23 determines that the possibility that a liquefaction phenomenon occurs at the point B is high.

  When the liquefaction determining unit 23 determines that the occurrence rate of the point B calculated by the occurrence rate calculating unit 22 exceeds the threshold, the reporting unit 24 issues a liquefaction warning warning to the facility A. (S105). The liquefaction warning alarm issued to the facility A includes, for example, a stop command or a warning notification command. Both the stop command and the warning notification command may be included in the liquefaction warning alarm.

  In the facility A, when a suspension command is received from the monitoring center 1, an operation necessary to halt the facility is performed. For example, when the facility A is an elevator device, if the car 2 is in a no-load state and is waiting for door closing, the elevator device is stopped as it is by receiving a stop command from the monitoring center 1. If the car 2 is traveling with a user on it, the control panel 8 stops the car 2 at the nearest floor and performs the door opening operation. The control panel 8 performs a door closing operation after the user gets out of the car 2. The elevator apparatus will stop after the door is closed.

  When receiving a stop command from the monitoring center 1 while the automatic recovery operation after the earthquake is being performed, the control panel 8 forcibly ends the automatic recovery operation. The elevator apparatus stops after the forced recovery operation is forcibly terminated. The automatic recovery operation is an operation for automatically returning the elevator apparatus to normal operation after an earthquake. In the automatic recovery operation, various predetermined operations are performed. And if all operation | movement is complete | finished without detecting abnormality, an elevator apparatus will be returned to normal driving | operation.

  When the facility A is an escalator device, if the stand A is in a state where the footboard 10 and the moving handrail 11 are stopped, the escalator device is stopped as it is by receiving a stop command from the monitoring center 1. Further, if the footboard 10 and the moving handrail 11 are traveling, the control panel 14 gradually decelerates the footboard 10 and the moving handrail 11. The escalator device pauses after the footboard 10 and the moving handrail 11 are completely stopped.

  If a stop command is received from the monitoring center 1 while the automatic recovery operation after the earthquake is being performed, the control panel 14 forcibly ends the automatic recovery operation. The escalator device pauses after forced termination of automatic recovery operation. The automatic recovery operation is an operation for automatically returning the escalator device to normal operation after an earthquake. In the automatic recovery operation, various predetermined operations are performed. And if all operation | movement is complete | finished without abnormality being detected, an escalator apparatus will be returned to normal driving | operation.

  In the facility A, when a warning notification command is received from the monitoring center 1, appropriate notification is performed. For example, when the facility A is an elevator device, the control panel 8 makes a notification from the notification device 4 when receiving a stop command from the monitoring center 1. For example, the control panel 8 displays on the display that a liquefaction phenomenon may occur. The control panel 8 may display on the display a content such as “The elevator device is suspended because a liquefaction phenomenon may occur.” The control panel 8 may announce the same content from a speaker.

  When the facility A is an escalator device, the control panel 14 makes a notification from the notification device 12 when receiving a pause command from the monitoring center 1. For example, the control panel 14 displays on the display device that a liquefaction phenomenon may occur. The control panel 14 may display a content such as “The escalator device has been suspended because a liquefaction phenomenon may occur” on the display. The control panel 14 may announce the same content from a speaker.

  Further, when the liquefaction determining unit 23 determines that the occurrence rate of the point B calculated by the occurrence rate calculating unit 22 exceeds the threshold value, the reporting unit 24 sets the maintenance personnel in charge of the maintenance of the facility A. A liquefaction warning is issued to the portable terminal 16 (S106). The reporting unit 24 may issue a liquefaction warning warning to the use device of the maintenance staff responsible for the maintenance of the facility A in S106. The liquefaction warning alarm issued to the maintenance worker's portable terminal 16 or the device used includes, for example, a warning notification command.

  In the portable terminal 16 of the maintenance staff and the use device, when a warning notification command is received from the monitoring center 1, appropriate notification is performed. For example, in the portable terminal 16 and the use device, a content such as “equipment A has been suspended because a liquefaction phenomenon may occur” is displayed on the display. You may announce the same content from a speaker. The maintenance staff can grasp that the facility A is stopped by looking at the display. When the liquefaction phenomenon occurs, the restoration of the equipment A becomes extremely difficult. The maintenance staff can take appropriate measures such as postponing the restoration work of the facility A that has been stopped. Further, the maintenance staff can take an appropriate response such as moving around the point B where the liquefaction phenomenon occurs.

  If it is a monitoring system having the above-mentioned configuration, it can be distributed to the facility to be monitored that there is a possibility that a liquefaction phenomenon may occur. The monitoring center 1 monitors a large number of facilities. The monitoring center 1 may perform the processing flow shown in FIG. 2 for all the facilities to be monitored. The monitoring center 1 may perform the processing flow shown in FIG. 2 only for some equipment to be monitored.

  For example, the underground machine room of an elevator apparatus and an escalator apparatus has many hollow parts. When liquefaction occurs, a part of the underground machine room may protrude above the ground. For this reason, you may limit the object which the monitoring center 1 performs the processing flow shown in FIG. 2 to the elevator apparatus and escalator apparatus in which the entrance and exit faces the ground. As an example of such an elevator apparatus and an escalator apparatus, what was installed in the station, what was installed in the footbridge, what was installed in the 1st floor of a building, etc. are mentioned.

  Moreover, even if the liquefaction phenomenon occurs, there is a possibility that there is no damage to the elevator apparatus and the escalator apparatus whose entrance / exit does not face the ground. For this reason, for example, when an escalator device is installed on each floor of a five-story building, when the suspension command is received from the monitoring center 1, only the first-floor escalator device whose entrance faces the ground May be paused.

Embodiment 2. FIG.
FIG. 3 is a diagram showing a configuration example of the monitoring system according to Embodiment 2 of the present invention. In the first embodiment, the example in which the occurrence of the liquefaction phenomenon is predicted based on the earthquake information received from the outside has been described. In the present embodiment, an example of predicting the occurrence of a liquefaction phenomenon based on three-component acceleration information detected by an accelerometer will be described.

  In the example shown in the present embodiment, the accelerometer 25 is provided in the facility to be monitored or in the vicinity of the facility. The accelerometer 25 detects the acceleration of three orthogonal components. The configuration and functions of the monitoring system that are not specifically disclosed in the present embodiment are the same as any of the configurations and functions disclosed in the first embodiment.

  The monitoring center 1 predicts the occurrence of the liquefaction phenomenon and transmits appropriate information to the facilities existing in the area where the liquefaction phenomenon may occur. The monitoring center 1 acquires information necessary for predicting the occurrence of the liquefaction phenomenon from the external accelerometer 25. Hereinafter, the functions of the monitoring center 1 will be described in detail with reference to FIGS. FIG. 4 is a flowchart showing an operation example of the monitoring system according to Embodiment 2 of the present invention.

  The monitoring center 1 periodically determines whether or not a measurement waveform has been received from the outside (S201). Consider a case where an earthquake occurs and a point B where a certain facility A (for example, an elevator device) is installed shakes. When an earthquake occurs, a measurement waveform including information of three orthogonal components of acceleration is output from the accelerometer 25 provided in the facility A or the accelerometer 25 provided in the vicinity of the facility A. The measurement waveform output from the accelerometer 25 is received by the information receiving unit 20. At this time, the information receiving unit 20 may receive measurement waveforms from the plurality of accelerometers 25.

  When the information receiving unit 20 receives the measurement waveform, the seismic intensity specifying unit 21 specifies the seismic intensity at the point B at a constant cycle (S202). For example, the seismic intensity specifying unit 21 specifies the seismic intensity at the point B every second. Hereinafter, the seismic intensity specified by the seismic intensity specifying unit 21 at a constant cycle is also referred to as “real-time seismic intensity”. The seismic intensity specifying unit 21 specifies the real-time seismic intensity at the point B based on the measurement waveform (information of acceleration of three components) received by the information receiving unit 20. For example, Japanese Patent No. 4229337 discloses an example of a method for calculating seismic intensity from a measured waveform. The method of calculating the seismic intensity from the measured waveform is not limited to the example disclosed in the above publication.

  Next, the occurrence rate calculation unit 22 calculates the occurrence rate of the liquefaction phenomenon at the point B. The occurrence rate calculation unit 22 performs the above calculation based on the real-time seismic intensity specified by the seismic intensity specifying unit 21. Hereinafter, a method for calculating the occurrence rate by the occurrence rate calculation unit 22 will be described in detail.

  The liquefaction phenomenon occurs when the pore water pressure u in the soil becomes equal to the restraining pressure σ and the shear strength τ becomes zero.

  Moreover, the following formula is described in the architectural foundation structure design guideline (Architectural Institute of Japan).

Here, τ _d is the shear stress in the horizontal plane, α _max is the design ground horizontal acceleration, g is the gravitational acceleration, γ _d is the reduction factor in the depth direction, and γ _n is the correction coefficient for the number of iterations. By transforming Equation 3, the following equation is obtained.

From Equation 4, it can be seen that the greater the shear stress on the horizontal plane, that is, the greater the fluctuation, and the greater the correction coefficient γ _{n of the} number of repetitions, the more likely the liquefaction phenomenon will occur because the effective restraint pressure decreases.

Therefore, the occurrence rate calculation unit 22 calculates the occurrence rate of the liquefaction phenomenon at the point B in consideration of the earthquake motion of a certain scale and the duration of the earthquake motion. For example, the occurrence rate calculation unit 22 first calculates ΔI _s by the following equation (S203).

Here, ΔI is a real-time seismic intensity. In the example shown in the present embodiment, ΔI is the seismic intensity specified by the seismic intensity specifying unit 21. I _s is the seismic intensity settings. Intensity setpoint I _s is predetermined. [Delta] I _s is the integrated value for time t _a difference from time t ₀ to the real-time seismic [Delta] I and seismic setpoint I _s. It is arbitrarily set the time _{t 0} and time _{t a.} FIG. 5 is a diagram illustrating the concept of the calculated value ΔI _s . In the example shown in FIG. 5, and set the seismic setpoint I _s to 4.5. [Delta] it _s is real-time seismic intensity [Delta] I corresponds to the area of the region C at the time of greater seismic setpoint I _s.

Next, the occurrence rate calculation unit 22 derives the occurrence rate of the liquefaction phenomenon at the point B from the calculated value ΔI _s (S204). For example, generation rate calculation unit 22 calculates the incidence of liquefaction point B on the basis of the incidence curves of liquefaction of calculated values [Delta] I _s and the point B at the point B. FIG. 6 is a diagram showing the relationship between ΔI _s and the occurrence rate of the liquefaction phenomenon. The incidence curve of the liquefaction phenomenon in the present embodiment is a curve shown in FIG. 6 with ΔI _s as a variable.

The occurrence rate curve shown in FIG. 6 is a curve determined according to the micro terrain classification of each point. That is, the occurrence rate curve at the point B is determined according to the fine landform classification at the point B. FIG. 6 shows the incidence curves D, E, and F at three points as an example. For example, the fine terrain classification of the point B is stored in the storage unit 19. You may memorize | store the fine landform division map of the whole country in the memory | storage part 19. FIG. For example, the storage unit 19 stores a 250 m mesh micro-terrain classification map. Knowing the incidence curves of liquefaction of calculated values [Delta] I _s and the point B at the point B, it is possible to calculate the incidence of liquefaction point B.

  Next, the liquefaction determination unit 23 determines whether or not the liquefaction phenomenon is likely to occur at the point B. Specifically, the liquefaction determining unit 23 determines whether or not the occurrence rate of the liquefaction phenomenon at the point B calculated by the occurrence rate calculating unit 22 exceeds a threshold value (S205). The threshold value to be compared with the occurrence rate calculated by the occurrence rate calculation unit 22 is stored in advance. If the occurrence rate at the point B calculated by the occurrence rate calculation unit 22 does not exceed the threshold value, the liquefaction determination unit 23 determines that the possibility that a liquefaction phenomenon occurs at the point B is not high. If the occurrence rate at the point B calculated by the occurrence rate calculation unit 22 exceeds the threshold value, the liquefaction determination unit 23 determines that the possibility that a liquefaction phenomenon occurs at the point B is high.

  When the liquefaction determining unit 23 determines that the occurrence rate of the point B calculated by the occurrence rate calculating unit 22 exceeds the threshold, the reporting unit 24 issues a liquefaction warning warning to the facility A. (S206). The liquefaction warning alarm issued to the facility A includes, for example, a stop command or a warning notification command. Both the stop command and the warning notification command may be included in the liquefaction warning alarm.

  In the facility A, when a suspension command is received from the monitoring center 1, an operation necessary to halt the facility is performed. In addition, in the facility A, when a warning notification command is received from the monitoring center 1, appropriate notification is performed. The operation and notification performed in the facility A are the same as any of the operations and notification disclosed in S105 of the first embodiment. Therefore, a specific description is omitted.

  Further, when the liquefaction determining unit 23 determines that the occurrence rate of the point B calculated by the occurrence rate calculating unit 22 exceeds the threshold value, the reporting unit 24 sets the maintenance personnel in charge of the maintenance of the facility A. A liquefaction warning warning is issued to the mobile terminal 16 (S207). The reporting unit 24 may issue a liquefaction warning warning to the use device of the maintenance staff in charge of the maintenance of the facility A in S207. The liquefaction warning alarm issued to the maintenance worker's portable terminal 16 or the device used includes, for example, a warning notification command. The notification performed by the maintenance worker's portable terminal 16 or the use device is the same as any notification disclosed in S106 of the first embodiment. Therefore, a specific description is omitted.

  If it is a monitoring system having the above-mentioned configuration, it can be distributed to the facility to be monitored that there is a possibility that a liquefaction phenomenon may occur. The monitoring center 1 monitors a large number of facilities. The monitoring center 1 may perform the processing flow shown in FIG. 4 for all equipment to be monitored. The monitoring center 1 may perform the processing flow shown in FIG. 4 only for some equipment to be monitored.

  Each part shown by the code | symbols 19-24 shows the function which the monitoring center 1 has. FIG. 7 is a diagram illustrating a hardware configuration of the monitoring center 1. The monitoring center 1 includes a circuit including, for example, an input / output interface 26, a processor 27, and a memory 28 as hardware resources. The functions of the storage unit 19 are realized by the memory 28. Moreover, the monitoring center 1 implement | achieves each function which each part 20-24 has by running the program memorize | stored in the memory 28 by the processor 27. FIG. You may implement | achieve part or all of each function which each part 20-24 has with hardware.

DESCRIPTION OF SYMBOLS 1 Monitoring center 2 Car 3 Counterweight 4 Notification apparatus 5 Main rope 6 Drive sheave 7 Electric motor 8 Control panel 9 Communication apparatus 10 Footboard 11 Moving handrail 12 Notification apparatus 13 Drive apparatus 14 Control panel 15 Communication apparatus 16 Portable terminal 17 Vehicle 18 Weather Information Center 19 Storage Unit 20 Information Receiving Unit 21 Seismic Intensity Specifying Unit 22 Incidence Rate Calculation Unit 23 Liquefaction Determination Unit 24 Reporting Unit 25 Accelerometer 26 Input / Output Interface 27 Processor 28 Memory

Claims (8)

Seismic intensity identification means for identifying the seismic intensity at the point where the equipment is installed;
Based on the seismic intensity specified by the seismic intensity specifying means, the incidence rate calculating means for calculating the incidence rate of the liquefaction phenomenon at the point,
Liquefaction determining means for determining whether the occurrence rate calculated by the occurrence rate calculating means exceeds a threshold;
When it is determined by the liquefaction determining means that the occurrence rate exceeds a threshold value, a reporting means for issuing a warning to the facility;
Monitoring system with.   The reporting means, when the liquefaction determination means determines that the occurrence rate exceeds a threshold value, issues a warning to a portable terminal or a user device of a maintenance staff in charge of maintenance of the equipment. The monitoring system according to 1. Further comprising information receiving means for receiving information on seismic intensity at the point from the outside,
The monitoring system according to claim 1 or 2, wherein the seismic intensity specifying means specifies the seismic intensity at the point based on seismic intensity information received by the information receiving means and the surface ground amplification factor of the point.   The occurrence rate calculating means calculates the occurrence rate of the liquefaction phenomenon at the point based on the seismic intensity specified by the seismic intensity specifying unit and the occurrence rate curve of the liquefaction phenomenon determined according to the micro terrain classification of the point. The monitoring system according to any one of claims 1 to 3. Information receiving means for receiving information on three-component acceleration detected by the accelerometer;
Based on the information on acceleration received by the information receiving means, a seismic intensity specifying means for specifying a seismic intensity at a point where equipment is installed at a certain period;
Based on the seismic intensity specified by the seismic intensity specifying means, the incidence rate calculating means for calculating the incidence rate of the liquefaction phenomenon at the point,
Liquefaction determining means for determining whether the occurrence rate calculated by the occurrence rate calculating means exceeds a threshold;
When it is determined by the liquefaction determining means that the occurrence rate exceeds a threshold value, a reporting means for issuing a warning to the facility;
Monitoring system with.   The reporting means, when the liquefaction determination means determines that the occurrence rate exceeds a threshold value, issues a warning to a portable terminal or a user device of a maintenance staff in charge of maintenance of the equipment. 5. The monitoring system according to 5.   The occurrence rate calculating means is based on the integrated value of the difference between the seismic intensity specified by the seismic intensity specifying means and the seismic intensity setting value and the occurrence rate curve of the liquefaction phenomenon determined according to the micro terrain classification of the point. The monitoring system according to claim 5 or 6, which calculates a rate of occurrence of a liquefaction phenomenon. The facility is an elevator device or an escalator device,
The monitoring according to any one of claims 1 to 7, wherein the facility forcibly terminates the automatic recovery operation when receiving an alarm from the notification means when the automatic recovery operation after the earthquake is performed. system.

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